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supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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id sigradi2017_051
authors Quitral Zapata, Francisco Javier; Luis Felipe González Böhme
year 2017
title Máquina CNC de 7 ejes para cortar poliestireno expandido (EPS) obteniendo superficies de doble curvatura en una sola pasada. [7-axis CNC machine to cut expanded polystyrene (EPS) for obtaining double-curved surfaces in a single pass.]
source SIGraDi 2017 [Proceedings of the 21th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-227-439-5] Chile, Concepción 22 - 24 November 2017, pp.352-357
summary We present a novel CAD/CAM apparatus and method for single-pass cutting of double-curved expanded polystyrene formworks. A rationalization approach was implemented using generic solvers in a popular free visual programming environment integrated into a well-known commercial CAD software, which allows finding elastica curve sections for processing double-curved NURBS surfaces. This procedure allows us to convert bending curves geometry into G-code coordinates for numerically controlling a flexible cutting hot-blade. A prototype 7-axis machine was experimentally validated in a series of cutting processes of EPS formworks to build a double-curved concrete pony wall.
keywords Hot-blade cutting, Double-curved surfaces, Single-pass cutting, Expanded polystyrene formworks, Computer-aided manufacturing
series SIGraDi
email francisco.quitral@usm.cl
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